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potential energy
Potential energy is the energy possessed by an object because of its height above the ground. The amount of potential energy possessed by an object depends on its mass and its height. A roller coaster car is initially hauled by a motor and chain system to the top of a tall hill, giving it a large quantity of potential energy.
 

  Physics Quote


It is not uncommon for engineers to accept the reality of phenomena that
are not yet understood, as it is very common for physicists to disbelieve
the reality of phenomena that seem to contradict contemporary beliefs of
physics - H. Bauer


 

 
 
 

Physics Articles
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Physics, Math and Mental Gymnastics
Author: David Mcmahon
 Added: 06/21/2006
 Type: Summary
 Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10Average visitor rating of 7.6/10

For most of us, mastering math is a tedious and difficult step on the path to becoming a physicist or engineer. How can those of us who aren't math whiz kids become expert mathematicians? The answer is an approach I call mental gymnastics.
Does spooky action at a distance allow faster than light communication?
Author: David Mcmahon
 Added: 03/21/2006
 Type: Summary
 Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10

Quantum entanglement, as first explained in the EPR paper written by Einstein and his colleagues, seems to imply that a "spooky" connection exists between particles that have interacted in the past. Does this connection allow us to communicate faster than the speed of light?
Employment in Physics
Author: Guest Writer
 Added: 02/14/2006
 Type: Summary
 Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10

There have been frequent questions on the kinds of employment that are available for physicists. That question is very difficult to answer, because it depends on a number of factors, such as where you are, what degree you obtained, what area of specialization you went into, and what skill you have acquired.
Condensed Matter Physics
Author: Guest Writer
 Added: 01/01/2006
 Type: Summary
 Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10

Consider the fact that when most bright-eyed physics majors in their first year entering a university, they are either not aware, or hardly know anything about a field of physics known as condensed matter...
Nikola Tesla
Author: Guest Writer
 Added: 05/31/2004
 Type: Review
 Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10Average visitor rating of 8/10

Nikola Tesla (July 10, 1856 - January 7, 1943) (Baptism name: Íèêîëàé; Nikolaj; Name in Cyrillic alphabet: Íèêîëà Òåñëà) was a Serb-American physicist, mathematician, inventor, and electrical engineer...
Navier-Stokes equations
Author: Guest Writer
 Added: 04/04/2004
 Type: Summary
 Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10Average visitor rating of 9.1/10

In fluid dynamics, the Navier-Stokes equations are a set of nonlinear partial differential equations that describe the flow of fluids such as liquids and gases...
Fermionic condensate
Author: Guest Writer
 Added: 02/24/2004
 Type: Review
 Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10Average visitor rating of 7.9/10

The fermionic condensate is a new phase of matter, first created on December 16, 2003 by physicist Deborah S. Jin. It is the sixth known phase of matter, and is related to the Bose-Einstein condensate, which was first created in 1995. The five other phases of matter are gases, solids, liquids, plasmas and Bose-Einstein condensates.
Forces
Author: Tom Young
 Added: 12/16/2003
 Type: Summary
 Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10Average visitor rating of 7.4/10

These are the topic areas that will be discussed: Basics of Forces, Force Diagrams, Addition of Forces, Equilibrium,Gravity, and Friction.

Mechanical Energy Basics
Author: Tom Young
 Added: 11/12/2003
 Type: Summary
 Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10Average visitor rating of 6.4/10

These are the topic areas covered in the notes for this article: The Concept of Energy, Work and Power, Potential Energy, Kinetic Energy, Change in Energy, Conservation of Energy, Elastic Collisions
Feenburg’s Twin Paradox Still Unsolved?
Author: Erich Schoedl
 Added: 07/19/2003
 Type: Review
 Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10

Think you know Relativity? Beaten the paradox of the twins to death, scourged every possible edifice? Only those too lazy to study still believe there to be a paradox yet today? You might be surprised just how many Relativity experts don’t really understand the key to this particular incarnation of the paradox. Is there a problem with rotation symmetry in the velocity transformation?
Electromagnetism Basics
Author: Tom Young
 Added: 06/29/2003
 Type: Summary
 Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10Average visitor rating of 8.2/10

Magnets, Magnetic polarity, Magnetic fields ,Electromagnetism, Electromagnetic fields, Magnetic effects on charged particles, Magnetic effects on current carrying conductors, Applications of electromagnetic concepts, Induced current, Applications of induction, Generators, Characteristics of alternating current, Motors
Optic Basics (Part 2/2)
Author: Tom Young
 Added: 06/12/2003
 Type: Tutorial
 Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10Average visitor rating of 8.6/10

This is the second installment of the Optic Basics series. You'll learn about: Using mirror equations, Refraction, Snell’s Law, and Lenses.

Optic Basics (Part 1/2)
Author: Tom Young
 Added: 06/08/2003
 Type: Summary
 Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10Average visitor rating of 9/10

When any wave encounters an object it can do one of three things; it can bounce off the object (reflection), it can go into the object (refraction), or it can go past the object (diffraction). In each case changes in the light’s path occurs.
Momentum Basics
Author: Tom Young
 Added: 06/02/2003
 Type: Summary
 Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10Average visitor rating of 7/10

These are the topic areas covered in this article: Impulse, Momentum, Change in Momentum, and Conservation of Momentum

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